* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 28px;
    color: #2c3e50;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    background: #e0e0e0;
    color: #333;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s;
}

.btn:hover {
    background: #d0d0d0;
}

.btn:disabled {
    background: #f0f0f0;
    color: #999;
    cursor: not-allowed;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #229954;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

.tabs {
    background: white;
    padding: 0;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    overflow: hidden;
}

.tab-btn {
    flex: 1;
    padding: 15px;
    border: none;
    background: white;
    color: #666;
    cursor: pointer;
    font-size: 16px;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.tab-btn:hover {
    background: #f8f9fa;
}

.tab-btn.active {
    color: #3498db;
    border-bottom-color: #3498db;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.section {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.section h2 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.section h3 {
    font-size: 18px;
    margin: 20px 0 10px;
    color: #2c3e50;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stat-card h3 {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
    font-weight: 500;
}

.stat-value {
    font-size: 28px;
    font-weight: 600;
    color: #2c3e50;
}

.stat-value.small {
    font-size: 16px;
}

.stat-value.positive {
    color: #27ae60;
}

.stat-value.negative {
    color: #e74c3c;
}

.filters {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.filters input,
.filters select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.filters input[type="text"] {
    flex: 1;
    min-width: 200px;
}

.filters input[type="date"] {
    min-width: 150px;
}

.filters select {
    min-width: 150px;
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: #f8f9fa;
}

th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #2c3e50;
    border-bottom: 2px solid #ddd;
}

td {
    padding: 12px;
    border-bottom: 1px solid #f0f0f0;
}

tr:hover {
    background: #f8f9fa;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #999;
}

.list-view {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.list-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 4px;
}

.list-item-label {
    font-weight: 500;
}

.list-item-value {
    font-weight: 600;
    color: #2c3e50;
}

.list-item-value.positive {
    color: #27ae60;
}

.list-item-value.negative {
    color: #e74c3c;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

.modal-content h2 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.modal-content p {
    margin-bottom: 15px;
    color: #666;
}

.modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.status-message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    display: none;
}

.status-message.success {
    display: block;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.status-message.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.projection-form {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.recurring-item {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: 10px;
    margin-bottom: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 4px;
}

.recurring-item input,
.recurring-item select {
    padding: 6px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.recurring-item button {
    padding: 6px 12px;
}

.hidden {
    display: none !important;
}

.amount-positive {
    color: #27ae60;
    font-weight: 600;
}

.amount-negative {
    color: #e74c3c;
    font-weight: 600;
}

/* Auth Loading Screen */
.auth-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.auth-loading-content {
    text-align: center;
    color: white;
}

.auth-loading-content h2 {
    font-size: 32px;
    margin-bottom: 10px;
}

.auth-loading-content p {
    font-size: 18px;
    opacity: 0.8;
}

/* Sign In Screen */
.sign-in-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
}

.sign-in-content {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.sign-in-content h1 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.sign-in-content p {
    color: #666;
    margin-bottom: 25px;
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-left: 15px;
    border-left: 1px solid #e0e0e0;
    margin-left: 5px;
}

.user-email {
    font-size: 14px;
    color: #666;
}

.user-role {
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 12px;
    background: #e8f4fd;
    color: #3498db;
    font-weight: 500;
    text-transform: uppercase;
}

.user-role.admin {
    background: #fdeaea;
    color: #e74c3c;
}

/* Admin-only elements (hidden for viewers) */
.admin-only.hidden {
    display: none !important;
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-actions {
        margin-top: 15px;
        width: 100%;
        flex-wrap: wrap;
    }

    .user-menu {
        width: 100%;
        padding-left: 0;
        border-left: none;
        margin-left: 0;
        padding-top: 10px;
        border-top: 1px solid #e0e0e0;
        margin-top: 5px;
    }

    .tabs {
        flex-direction: column;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .filters {
        flex-direction: column;
    }

    .filters input,
    .filters select {
        width: 100%;
    }

    .recurring-item {
        grid-template-columns: 1fr;
    }
}